AI stocks split before the bell as Nvidia gets a fresh memory-supply signal and Microsoft nears earnings
Nvidia rose 1.5% premarket after Reuters reported Samsung will start producing HBM4 memory chips for the company next month. Microsoft gained 3.3%, AMD added 2.3%, while Broadcom and Arm fell. Micron’s HBM supply for 2026 is sold out, with market share expected to stay in the low-20% range. Microsoft reports earnings Jan. 28; UBS cut its price target to $600.